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Sex-Linked Traits
Chromosomal basis for gender. Sex-linked traits.

2,749 itemsWelcome to Khan Academy

The Khan Academy is a non-profit educational organization created in 2006, by Bangladeshi American educator Salman Khan. With the stated mission of "providing a high quality education to anyone, anywhere", the website supplies a free online collection of more than 2,400 micro lectures via video tutorials stored on YouTube teaching mathematics, history, finance, physics, chemistry, biology, astronomy, economics and now computer science.
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